18 lines
603 B
Markdown
18 lines
603 B
Markdown
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Sand-Boxing - Block Access to External Data
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==========================================
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{{#include ../links.md}}
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Rhai is _sand-boxed_ so a script can never read from outside its own environment.
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Furthermore, an [`Engine`] created non-`mut` cannot mutate any state outside of itself;
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so it is highly recommended that [`Engine`]'s are created immutable as much as possible.
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```rust
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let mut engine = Engine::new(); // create mutable 'Engine'
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engine.register_get("add", add); // configure 'engine'
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let engine = engine; // shadow the variable so that 'engine' is now immutable
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```
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